The next retailer on our Black Friday 2011 list is Office Depot. Office Depot will open its doors at 6am on Black Friday, and will close at 9pm. These deals will be valid until closing time Saturday. If you can’t wait that long, some Black Friday deals will be offered on Office Depot’s website on Thanksgiving day. However, the deals we’re about to show you will be only available in-store. As our headline suggests, the BlackBerry PlayBook will be sold for $199. Staples will also be selling the PlayBook for $199 on Black Friday. Office Depot also dug up some…